Finding the Fourth Proportional to 87,155,690,239.36, 120,271,136,397.24 and 48,572,557,034.32
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Solution
The fourth proportional to 87,155,690,239.36, 120,271,136,397.24 and 48,572,557,034.32 is: 67,028,057,676.94
Step by Step Solution
- Step 1: Write the proportion equation
87,155,690,239.36 : 120,271,136,397.24 = 48,572,557,034.32 : x - Step 2: Convert to fraction form
87,155,690,239.36/120,271,136,397.24 = 48,572,557,034.32/x - Step 3: Cross multiply
87,155,690,239.36x = 120,271,136,397.24 × 48,572,557,034.32 - Step 4: Simplify right side
87,155,690,239.36x = 5,841,876,632,237,420,576,768 - Step 5: Solve for x
x = 5,841,876,632,237,420,576,768/87,155,690,239.36 - Step 6: Final answer
x = 67,028,057,676.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.